#define  trigPin 10
#define echoPin 9



void setup() {
  // put your setup code here, to run once:

pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
Serial.begin(9600);



}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);


long duration;
long distance;

duration = pulseIn(echoPin, HIGH);
distance = (duration * 0.0343) /2;  // di arduino pakai tanda titik (.) sebagai koma 
Serial.println(distance);
delay(1000);


}